Rabi oscillations in a superconducting nanowire circuit

Yannick Schön; Jan Nicolas Voss; Micha Wildermuth; Andre Schneider; Sebastian T. Skacel; Martin P. Weides; Jared H. Cole; Hannes Rotzinger; Alexey V. Ustinov

doi:10.1038/s41535-020-0220-x

arXiv · 1907.04107

Rabi oscillations in a superconducting nanowire circuit

Yannick Schön·Jan Nicolas Voss·Micha Wildermuth·Andre Schneider·Sebastian T. Skacel·Martin P. Weides·Jared H. Cole·Hannes Rotzinger·Alexey V. Ustinov

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Abstract

We investigate the circuit quantum electrodynamics of anharmonic superconducting nanowire oscillators. The sample circuit consists of a capacitively shunted nanowire with a width of about 20 nm and a varying length up to 350 nm, capacitively coupled to an on-chip resonator. By applying microwave pulses we observe Rabi oscillations, measure coherence times and the anharmonicity of the circuit. Despite the very compact design, simple top-down fabrication and high degree of disorder in the oxidized (granular) aluminum material used, we observe lifetimes in the microsecond range.

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cond-mat.supr-con cond-mat.dis-nn cond-mat.mes-hall quant-ph

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Yannick Schön, Jan Nicolas Voss, Micha Wildermuth, Andre Schneider, Sebastian T. Skacel, Martin P. Weides, Jared H. Cole, Hannes Rotzinger, Alexey V. Ustinov. 2020-03-16. Rabi oscillations in a superconducting nanowire circuit. https://doi.org/10.1038/s41535-020-0220-x

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